ABSTRACT Noninvasive prenatal screening that uses cellfree DNA from the plasma of pregnant women offers tremendous potential as a screening method for fetal aneuploidy A number of laboratories have validated different techniques for the use of cellfree DNA as a screening test for fetal aneuploidy ...

ABSTRACT In 2001 the American College of Obstetricians and Gynecologists and the American College of Medical Genetics introduced guidelines for prenatal and preconception carrier screening for cystic fibrosis The American College of Obstetricians and Gynecologists Committee on Genetics has updated...

ABSTRACT Fragile X syndrome is the most common inherited form of mental retardation The syndrome occurs in approximately 1 in 3600 males and 1 in 40006000 females Approximately 1 in 250 females carry the premutation DNAbased molecular analysis is the preferred method of diagnosis for fragile X syn...

ABSTRACT Certain autosomal recessive disease conditions are more prevalent in individuals of Eastern European Jewish Ashkenazi descent Previously the American College of Obstetricians and Gynecologists recommended that individuals of Eastern European Jewish ancestry be offered carrier screening fo...

ABSTRACT Preimplantation genetic screening differs from preimplantation genetic diagnosis for single gene disorders and was introduced for the detection of chromosomal aneuploidy Current data does not support a recommendation for preimplantation genetic screening for aneuploidy using fluorescence ...

ABSTRACT Undergoing a single diagnostic Xray procedure does not result in radiation exposure adequate to threaten the wellbeing of the developing preembryo embryo or fetus and is not an indication for therapeutic abortion When multiple diagnostic Xrays are anticipated during pregnancy imaging proc...